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Crossref Stats Page: Updated on Dec 6, 2019

MetaData Deposit
Total Records in Database110,332,665
Total Prefixes15,262
Number of Journals73,655
Number of Books1,393,751
Number of Conference Proceedings69,366
Number of Journal DOIs80,444,331
Number of Book DOIs16,390,369
Number of Conference DOIs6,119,621
Number of Components3,926,335
Number of Standards Titles395,813
Number of Standards DOIs306,955
Number of Databases28,565
Number of Database DOIs1,879,136
Number of Articles with References Deposited45,140,761
Number of Cited-By Links978,756,312
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 33,691
Number of Book Title Level DOIs 1,413,514
Number of ConfProc Title Level DOIs 21,602
Number of Dissertation Title Level DOIs 305,556
Number of Report Title Level DOIs 620,016
Number of Standards Title Level DOIs 306,390
Number of Database Title Level DOIs 26,060
Number of Unique DOIs with FundRef data 2,947,660

Monthly Deposit Data

MonthTotal Records
Added
Total Current
Deposits
Total BackFile
Deposits
Total Records
Updated
(2016)6,125,8073,971,1362,154,67126,670,973
(2017)7,384,8185,109,0752,275,74331,278,043
(2018)8,265,9186,240,5712,025,34733,609,916
Nov827,655705,722121,9333,434,929
Dec780,544671,698108,8462,809,222
Jan837,106643,227193,8793,709,404
Feb739,634600,221139,4132,930,021
Mar883,267709,834173,4333,394,481
Apr911,489699,395212,0943,526,819
May1,022,569765,045257,5244,071,354
Jun858,438701,512156,9264,128,236
Jul907,844740,353167,4913,389,352
Aug923,789722,202201,5874,967,915
Sep974,995676,754298,2415,638,285
Oct1,099,091759,494339,5975,567,582
Nov1,054,714806,270248,4445,685,991
Dec156,584125,65130,933618,067


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(2016)2,132,786,834741,439,41035%59%46%46%1,082,427,3471,001,605,89193%
(2017)2,104,222,315726,991,60435%51%40%40%1,522,141,0931,397,871,16892%
(2018)2194087319754,970,92334%51%43%43%1,823,393,3791,738,885,21895%
Nov182,717,30663,494,72735%55%44%74%195,014,038182,442,19394%
Dec127,351,47356,427,04944%55%48%72%177,168,246170,607,39296%
Jan126,964,51763,996,54150%58%42%60%127,096,055119,483,24194%
Feb141,564,96577,731,76055%59%50%68%131,022,077123,932,71995%
Mar128,308,24168,458,71453%59%53%67%155,800,023147,005,05794%
Apr149,186,03668,873,98446%56%58%68%149,987,175141,707,40594%
May172,624,83868,086,94639%54%61%66%150,178,136141,697,07594%
Jun129,897,36152,710,69141%55%51%68%263,675,557214,375,45181%
Jul124,518,87358,381,31747%52%52%72%152,592,199145,168,55395%
Aug141,232,76259,310,35942%49%53%69%148,616,500141,484,67595%
Sep136,632,17157,991,33642%50%46%74%157,467,989150,756,19896%
Oct149,184,40174,728,38450%50%52%74%183,667,799176,054,69696%
Nov135,248,39567,419,62150%50%47%74%123,589,016116,195,04794%
Dec28,042,16912,842,08246%48%45%68%25,333,75824,122,17595%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Nov24,82885,735
Dec22,60379,642
Jan28,00494,440
Feb25,72890,182
Mar26,20995,016
Apr22,05392,117
May37,085117,372
Jun25,16498,685
Jul29,518114,941
Aug35,573117,758
Sep25,364103,458
Oct45,081170,643
Nov37,707132,502
Dec7,29325,833

ORCID Totals

StatisticTotal
Total orcid/article pairs5,567,070
Total unique orcids2,040,298
Total works pushed2,781,472
Authors granting898,429
Authors denying531,492
Authors not responding623,028